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특허 상세정보

Low density microcellular foams

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) C08U-009/26    C08V-009/28   
미국특허분류(USC) 521/64 ; 210/50028 ; 264/28 ; 264/49
출원번호 US-0785436 (1985-10-08)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 23  인용 특허 : 5
초록

Low density, microporous polymer foams are provided by a process which comprises forming a solution of polymer and a suitable solvent followed by rapid cooling of the solution to form a phase-separated system and freeze the phase-separated system. The phase-separated system comprises a polymer phase and a solvent phase, each of which is substantially continuous within the other. The morphology of the polymer phase prior to and subsequent to freezing determine the morphology of the resultant foam. Both isotropic and anisotropic foams can be produced. If i...

대표
청구항

In a process for preparing a microporous, low-density foam having a nominal cell size of from about 1-20 micrometers and a density of less than about 0.1 g/cc comprising the steps of: forming a homogeneous initial solution of a polymer in a solvent therefor at a temperature at which said polymer is essentially completely soluble in said solvent, cooling said solution at a rate such that said solution forms a phase-separated system comprising two distinct phases, each of which is continuous within the other and wherein one phase comprises essentially said...

이 특허를 인용한 특허 피인용횟수: 23

  1. Williams ; Jr. Joel M. (Los Alamos NM) Nyitray Alice M. (Los Alamos NM) Wilkerson Mark H. (Espanola NM). Composite foams. USP1990104966919.
  2. Williams ; Jr. Joel M. (Los Alamos NM) Nyitray Alice M. (Los Alamos NM) Wilkerson Mark H. (Espanola NM). Composite foams. USP1991085037859.
  3. Branch, Gregory L.. Deep drawn microcellularly foamed polymeric containers made via solid-state gas impregnation thermoforming. USP2017099770854.
  4. Branch, Gregory L.. Deep drawn microcellularly foamed polymeric containers made via solid-state gas impregnation thermoforming. USP2016039296126.
  5. Shmidt Creston D. ; Imeokparia Daniel D. ; Suh Kyung W. ; Malone Bruce A. ; Franklin Ken. Extruded, open-cell microcellular alkenyl aromatic polymer foams, process for making and articles made therefrom. USP1999015863960.
  6. Shmidt Creston D. ; Imeopkaria Daniel D. ; Suh Kyung W. ; Malone Bruce A. ; Franklin Ken. Extruded, open-cell microcellular alkenyl aromatic polymer foams, process for making, and articles made therefrom. USP1998075780521.
  7. Hoxmeier Ronald James. Freeze-dried polystyrene-polysiloxane foams. USP2000106136872.
  8. Arnold ; Jr. Charles (Albuquerque NM) Aubert James H. (Albuquerque NM) Clough Roger L. (Albuquerque NM) Rand Peter B. (Albuquerque NM) Sylwester Alan P. (Albuquerque NM). Low density microcellular carbon foams and method of preparation. USP1989054832881.
  9. Nadella, Krishna. Method for infusing a gas into a thermoplastic material, and related systems. USP2018039914247.
  10. Nadella, Krishna; Wang, Xiaoxi; Kumar, Vipin. Method for joining thermoplastic polymer material. USP2016039296185.
  11. Joseph M. DeSimone ; Saad A. Khan ; Joseph R. Royer ; Richard J. Spontak ; Teri Anne Walker. Method of making foamed materials using surfactants and carbon dioxide. USP2002066403663.
  12. DeSimone, Joseph M.; Khan, Saad A.; Royer, Joseph R.; Spontak, Richard J.; Walker, Teri Anne; Gay, Yvon J.; Siripurapu, Srinivas. Methods of making foamed materials of blended thermoplastic polymers using carbon dioxide. USP2004096790870.
  13. Suh Kyung W. ; Yamada Michio,JPX ; Schmidt Creston D. ; Imeokparia Daniel D.. Microcellular foams containing an infrared attenuating agent and a method of using. USP1998125854295.
  14. Nadella, Krishna; Branch, Gregory; Kumar, Vipin; Waggoner, Michael. Multi-layered foamed polymeric objects and related methods. USP20180710029401.
  15. Nadella, Krishna; Branch, Gregory; Kumar, Vipin; Waggoner, Michael A.. Multi-layered foamed polymeric objects and related methods. USP2013028377548.
  16. Kollaja Richard A.,DEX ; Devens Douglas A. ; Russell Patrise M. ; Hoisington Mark A.. Multilayer films having at least five film layers, wherein at least one layer is flame retardant. USP2001086280845.
  17. Lee, Jonghwi; Lee, Min Kyung. Polymer or polymer composite membrane having through-thickness micropores, and method for preparing same. USP2018069999996.
  18. Cooper-White, Justin John; Cao, Yang; Rowlands, Andrew Stewart. Porous polymer blend structures. USP2011108044108.
  19. Cooper-White, Justin John; Cao, Yang. Porous polymer structures. USP2012078222308.
  20. Whinnery LeRoy Louis (Livermore CA) Nichols Monte Carl (Livermore CA) Wheeler David Roger (Albuquerque NM) Loy Douglas Anson (Albuquerque NM). Process for preparing silicon carbide foam. USP1997095668188.
  21. Tabaksblat Ronald,NLX ; Aussems Hendricus F.,NLX. Process for the preparation of porous polyolefin particles. USP2000046051618.
  22. Branch, Gregory; Nadella, Krishna. Roll fed flotation/impingement air ovens and related thermoforming systems for corrugation-free heating and expanding of gas impregnated thermoplastic webs. USP2018029884440.
  23. Branch, Gregory; Nadella, Krishna. Roll fed flotation/impingement air ovens and related thermoforming systems for corrugation-free heating and expanding of gas impregnated thermoplastic webs. USP2016089427903.